In June 2006, DASMA updated its 2003 checklist for home inspectors
and consumers to use when performing a routine inspection
of a sectional garage door and electric opener. The checklist,
now posted as TDS 167 at the DASMA Web site, contains several
changes based on feedback.

To get the details, we talked to Pat Hunter, chair of the
DASMA Commercial & Residential Garage Door Technical Committee,
and Barbara Kelkhoff, chair of the Door Operator Committee.
These two committees took responsibility for developing the
document.

What’s new in this revised checklist?

Hunter: We’ve made it clearer and
easier to follow. We’ve also removed the reference to
the force-setting test of holding the bottom of the door while
it closes.

Why was that test method deleted?

Hunter: Three reasons: (1) The test is not
part of UL 325. (2) Some felt that the test was too subjective.
(3) We’ve heard isolated reports that the test has resulted
in injuries, such as back strains. These reports are rare,
but it’s best to stay on the safe side.

The new checklist continues to recommend the 2x4
reversal test. Did you consider adding the use of a roll of
paper towels?

Kelkhoff: Paper towel tests are inconsistent
and are not a reliable indicator of a correctly maintained
system. We continue to follow the UL 325 recommendation to
use a 2x4 laid flat. Our committee continues to study alternatives.

What is the importance of the checklist?

Kelkhoff: This checklist can be used when
buying a house or when the homeowner wants to review the door
operator system. It provides an executive summary of major
factors that should not be overlooked in an inspection. Of
course, as with any appliance, the owner’s manual will
have more details.

Hunter: The checklist is also a helpful way that our industry
can promote better and safer use of our products. It’s
smart to develop a cooperative relationship with home inspectors
and give them industry-approved direction.

How might a dealer best communicate the importance
of the use of this checklist?

Hunter: Dealers should offer unbiased assistance
to home inspectors and real estate agents in their areas.
This is a helpful service, and it’s good business. People
in these professions are often asked to recommend local trades.

Kelkhoff: The dealer is our industry’s
best asset in communicating the importance of an ongoing review.

Why was it important that the checklist be based
on provisions in published standards (e.g., UL 325)?

Hunter: Published standards ensure conformity
and safety. Standards are developed from a consensus so that
one person or manufacturer does not prejudice the information
for their benefit.

If a garage door system fails any of the checklist
items, what should a homeowner or home inspector do?

Hunter: The checklist clearly states, “Do
not repair or adjust the door yourself. All repairs and adjustments
must be done only by a trained door systems technician using
proper tools and instructions.”

The door operator system remains the largest moving object
in the house. The most complex and dangerous part of a door
is the counterbalance tension. This can’t be readily
seen, as it is transferred through the door components. Knowing
how and where these forces are transmitted is essential when
attempting any type of repair.

Routine maintenance such as cleaning and visually inspecting
the door is the responsibility of every homeowner. Tackling
repairs is best left to those who do it daily. They will have
the proper tools and parts to do it safely and correctly.